Method for forming sub image data packet including data of sub image superimposed on main image, recording medium for recording sub image data packet, and image process apparatus

• US 5,999,160 A
• Filed: 04/13/1995
• Issued: 12/07/1999
• Est. Priority Date: 04/14/1994
• Status: Expired due to Term

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Mimura, Hideki, Kikuchi, Shinichi, Taira, Kazuhiko, Kitamura, Tetsuya
• Primary Examiner(s): Shalwala, Bipin H.
• Assistant Examiner(s): LEWIS, DAVID LEE
• Application Number:
  US08/421,182
• Time in Patent Office: 1,699 Days
• Field of Search: 345/115, 345/113, 386/111, 348/468, 348/564, 348/15, 348/462, 348/465, 348/467, 348/387, 348/390, 348/415, 370/392
• US Class Current: 715/202
• CPC Class Codes: H04N 21/42653 for processing graphics
• CPC Class Codes: H04N 5/272 Means for inserting a foreground image in a background image, i.e. inlay, outlay
• CPC Class Codes: H04N 5/44504 Circuit details of the additional information generator, e.g. details of the character or graphics signal generator, overlay mixing circuits
• CPC Class Codes: H04N 5/45 Picture in picture , e.g. displaying simultaneously another television channel in a region of the screen
• CPC Class Codes: H04N 5/9208 involving the use of subcodes
• CPC Class Codes: H04N 9/641 Multi-purpose receivers, e.g. for auxiliary information H04N9/642 takes precedence

Abstract

A sub image display control system is composed of two sub image display control portions that are a display region control portion and a display timing control portion and a display output portion. A sub image data packet is composed of three types of data that are a sub image header, sub image display data, and sub image control data. In this structure, display spatial loss and display temporal loss can be remarkably reduced and sub images with wide applicability can be accomplished.

Claims

1. A recording medium for recording a sub image data packet for superimposing a sub image data on a main image data, the sub image data packet comprising:

a header portion disposed at the beginning of the sub image data packet;

a sub image data portion disposed behind the header portion, said sub image data portion storing the sub image data to be superimposed on the main image data; and

a control data portion disposed behind the sub image data portion, said control data portion storing control data for changing sub image information timewise, said sub image information designating display position, display size and display color of said sub image data,

wherein the header portion includes a start address of the control data portion; and

wherein the sub image information comprises information on compensating the sub image data.

2. A recording medium for recording a sub image data packet for superimposing a sub image data on a main image data, the sub image data packet comprising:

a header portion disposed at the beginning of the sub image data packet;

a sub image data portion disposed behind the header portion, said sub image data portion storing the sub image data to be superimposed on the main image data; and

a control data portion disposed behind the sub image data portion, said control data portion storing control data for changing sub image information timewise, said sub image information designating display position, display size and display color of said sub image data,

wherein the header portion includes a start address of the control data portion; and

wherein the sub image information comprises information on contrast between the sub image data and the main image data.

3. A reproducing apparatus for reproducing a sub image data to be superimposed on a main image data, said apparatus comprising:

inputting means for inputting a sub image data packet from a disk on which the sub image data packet is recorded, said sub image data packet comprising a header portion disposed at the beginning of the sub image data packet;

a sub image data portion disposed behind the header portion, said sub image data portion storing the sub image data to be superimposed on the main image data; and

a control data portion disposed behind the sub image data portion, said control data portion control data for changing sub image information timewise, said sub image information designating display position, display size, and display color of said sub image data, wherein the header portion includes a start address of the control data portion;

generating means for generating the sub image data from the sub image data packet input by said inputting means; and

displaying means for displaying the sub image data generated by said generating means on the basis of the sub image information, wherein the sub image information comprises information on compensating the sub image data.

4. A reproducing apparatus for reproducing a sub image data to be superimposed on a main image data, said apparatus comprising:

inputting means for inputting a sub image data packet from a disk on which the sub image data packet is recorded, said sub image data packet comprising a header portion disposed at the beginning of the sub image data packet;

a sub image data portion disposed behind the header portion, said sub image data portion storing the sub image data to be superimposed on the main image data; and

a control data portion disposed behind the sub image data portion, said control data portion control data for changing sub image information timewise, said sub image information designating display position, display size,and display color of said sub image data, wherein the header portion includes astart address of the control data portion;

generating means for generating the sub image data from the sub image data packet input by said inputting means; and

displaying means for displaying the sub image data generated by said generating means on the basis of the sub image information,

wherein the sub image information comprises information on contrast between the sub image data and the main image data.